Railroad t-chair



(No Model.) 4 Sheets Sheet .1.

' A. J. MOXHAM.

RAILROAD T-GHAIR.

Patented July 12, 1887.

(No Model.) 4 Sheets-Sheet 2. A. J. MOXHAM.

RAILROAD T-GHAIR.

N0.-366,498. Patented July 12, 1887.

nvamlim y. r(\ w (No Model.) 4 Shets-Sheet 4.

A. J. MOXHAM.

RAILROAD T-CHAIR;

No. 366,498. Pa ented July 12, 1887.

UNITED STATES PATENT OFFICE.

ARTHUR J. MOXHAM, OF JOHNSTOlVN, PEhINSYLVANIA.

RAILROAD T-CHA|R.'

SPECIFICATION forming part of Letters Patent No. 366,498, dated July 12, 1887.

Application filed March 29, 1887. Serial No. 232,916. (No model.)

To all whom it may concern:

Be it known that I, ARTHUR J. MoXHIM, of Johnstown, in the county of Cambria and State ofPennsylvania, have invented a new and useful Improvement in Railroad T-Ohairs, which invention is fully set forth and illustrated in the followirig-specification and accompanying drawings.

The object of this invention is to clamp a girder-rail devoid of lower flanges to a T-chair as effectually in a vertical direction by means of a single piece of metal and a bolt or bolts as can be attained by splice-bars by what is known as a splice-bar fit.

The invention consists of the parts and combinations of parts hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a perspective view of one form of chair with a side bearingrail clamped therein. Fig. 2 shows a modification of said chair, its lower T-flanges being riveted thereto instead of being formed integral therewith. Figs. 3 and 4 show further slight modifications of form of said chair. Fig. 2 shows in side elevation one bolt for the chair and the rivets as spaced to enter the foot of the chair in Fig. 2. Fig. 3 shows in side elevation the spacing of the bolts as placed in Figs. 1, 3, and 4. A rail having a different form of head is mounted on. the chairs in each of Figs. 3 and 4, and a diffcrent form of rail also in Figs. 1 and 2, making three forms in all. The form of the head of the rail, however, is immaterial.

In said figures the several parts are indi cated by letters as follows: A, head of rail, and D its fiangeless vertical web; 0, one part or side of the chair; B, the other part or side, forming the complete chair, save that in Fig.

2 the part 13 is omitted and the part 0 is provided with two angle-feet, ff, riveted to its foot and forming a bottom T-fiange. The web D of the rail is slotted through at 1 so that the part 0 may be inserted therethrough and partly fill said slot, as shown at G, Figs. 1 and 2.

The object of leaving the space of the slot shown at 3 above G is in order that the top of the part 0 may be passed through the slot y horizontally and then the part 0 turned vertically, as shown in the drawings, so that the bend G shall bear against the bottom of the slot y and the bottom of the web D of the rail bear hard in the angle 0 of the part O,whercby when the bolt or bolts F are set up, whether located as shown in Fig. 2 or as in the other figures, a perfect clamping of the rail vertically is effected-within the single piece 0 as perfect as that of a splicebar fit where splice bars are used.

Fig. 2 dispenses with the side keeper-web of the part B, and in Figs. 3 and 4 said web is extended up under the head of the rail on one side.

In Fig. 1 the top of the web B abuts thebend in the part 0 at the point x, the top of 0 being extended up under the head of the rail on one side.

In Figs. 1 and 2 it will be observed that not only is the rail clamped in the one'piece 0 against vertical movement either up or down, but all tendency in the rail to heel outward, which is its tendency when in use, is prevented by the locking of the web of the rail within the part 0 both at the upper and lower points of the web.

In another application of mine for a two-part chair, filed herewith, bearing the Serial No. 252,920, the clamping of the rail is effected by means of the joint action of its said two parts, whereas in this application the whole elamping of the rail is accomplished within the one part 0. The web of the side part, B, where used in this invention, merely serves to lock the rail against transverse displacement. \Vhen said web is omitted, its place may be supplied by a bolt or bolts, F, Fig. 2., which pass through holes in the web D of the rail and the part 0, above the rivets T, which secure the anglepiecesf to the foot of the part 0.

Having thus fully described mysaid improved rail-chair, as of my invention I claim- 1. A T-chairfor girder-rails, having a single web offset as at c and curved as at G- to pass through a slot in the web of the rail to be supported, and thereby to lock said web and hold the rail against transverse displace ment, substantially as and for the purposes set forth.

2. A T-chair for girder-rails, having a single web offset as at c and curved as at G to pass through a slot in the web of the rail to be supported, and provided with a clamping bolt or bolts, whereby the chair is adapted to lock said web and clamp the rail against either 7 vertical or transverse displacement, substan-' and clamp the rail against either vertical or tially as and for the purposes set forth. transverse displacement, substantially as and I0 3. A T-chair for girder-rails, having a sinfor the purposes set forth.

gle web offset as at c and curved as at G to 5 pass through a slot in the Web of the rail to I UR MOXHAM' be supported, and provided with a side keeper Witnesses: for said web and with a clamping bolt or bolts, R0131. W. WVELOH, whereby the chair is adapted to lock said Web 0. R. POWELL. 

